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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: M06-2X/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-311+G(3df,2p)
 hartrees
Energy at 0K-153.814778
Energy at 298.15K-153.818704
HF Energy-153.814778
Nuclear repulsion energy70.031855
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at M06-2X/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3173 3173 5.23 38.84 0.70 0.83
2 A' 3056 3056 1.29 164.11 0.01 0.01
3 A' 2935 2935 94.88 131.38 0.29 0.45
4 A' 1876 1876 201.47 11.62 0.46 0.63
5 A' 1468 1468 21.92 8.74 0.57 0.73
6 A' 1432 1432 13.19 3.34 0.32 0.48
7 A' 1380 1380 22.73 1.61 0.74 0.85
8 A' 1136 1136 26.02 3.00 0.20 0.33
9 A' 899 899 6.77 5.69 0.28 0.44
10 A' 513 513 14.84 1.34 0.32 0.48
11 A" 3119 3119 3.62 52.84 0.75 0.86
12 A" 1475 1475 10.34 3.68 0.75 0.86
13 A" 1144 1144 0.18 1.20 0.75 0.86
14 A" 774 774 1.60 2.45 0.75 0.86
15 A" 158 158 1.61 0.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12268.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12268.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at M06-2X/6-311+G(3df,2p)
ABC
1.91159 0.34228 0.30668

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.462 0.000
C2 -0.927 -0.718 0.000
O3 1.195 0.383 0.000
H4 -0.491 1.456 0.000
H5 -0.362 -1.646 0.000
H6 -1.575 -0.669 0.877
H7 -1.575 -0.669 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.50021.19781.10802.13892.12792.1279
C21.50022.39022.21661.08651.09161.0916
O31.19782.39021.99822.55733.08983.0898
H41.10802.21661.99823.10422.54122.5412
H52.13891.08652.55733.10421.78741.7874
H62.12791.09163.08982.54121.78741.7543
H72.12791.09163.08982.54121.78741.7543

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.540 C1 C2 H6 109.359
C1 C2 H7 109.359 C2 C1 O3 124.343
C2 C1 H4 115.575 O3 C1 H4 120.082
H5 C2 H6 110.289 H5 C2 H7 110.289
H6 C2 H7 106.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.494      
2 C -0.616      
3 O -0.656      
4 H 0.158      
5 H 0.207      
6 H 0.207      
7 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.871 -0.296 0.000 2.886
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.241 -0.800 0.000
y -0.800 -17.832 0.000
z 0.000 0.000 -18.010
Traceless
 xyz
x -3.320 -0.800 0.000
y -0.800 1.793 0.000
z 0.000 0.000 1.527
Polar
3z2-r23.054
x2-y2-3.409
xy-0.800
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.115 0.215 0.000
y 0.215 4.370 0.000
z 0.000 0.000 3.388


<r2> (average value of r2) Å2
<r2> 46.599
(<r2>)1/2 6.826